Fountain-pen



H. I. UPT'ON.

FoIINTAIN PEN. APPLICATION FILED MAR. 26, 19.20..

1,365,131. Patented Jan. 11, 1921.

pen;

UNITED STATES HENRYJ. Ur'roN, onwnsrivrnnronn, MASSACHUSETTS.

, rouiv'rAINfr-EN.

Application ld Marclrf, 1920. Seria1-No. 369,115.

To all whom t may/concern: 4

Be it known that I', HENRY J. vUrfroN, a citizen of the Ilnited* States,l residingv at West Medfor certain new and .useful Improvements inFountain-Pens, of which the following is a specificati-on. s kMyinvention isan improvement in fountain pens of the type in which thewritingy point or pen proper isretractedwithin'the fountain when not inuse and the open end ofthe fountain closed by a capotV special 1 l ffountain Vof the pen/and Bthe cap, having construction. z l j In suchpens .heretofore constructed, the

cap was designed toscrew onto theopen end of the fountain, after'the penpoint had been;

retracted, until a conical plug, secured witlrin the closed end ofthe.capA was forcedinto the open end of the .fountain'to close'it. Itwas'early found desirable to provide a pro- Ajecting rod or guardcentrally disposed in the conical end of the plug and designed to engagethe pen carrier in case the pen had not been retracted, so as to preventthe cap being forced on, to the damage of the pro jecting pen and thusto guard the pen point. Limitations of room and strength compelled theemployment of metal for the purpose of fashioning this guard or part,yand limitations of cost and strength rendered 1t impracticable to usegold or other non-corrodible metal as the material. The consequence wasthat the ink, which reached this metal guard, speedily attacked andcorroded it, rendering the substitution of a new cap necessary, as theexpense of extracting the old plug and broken guard madel it profitableto substitute a new cap rather than to repair the old cap. f

My present invention consists in the provision of a specially shaped inkfeed-bar in a pen of the character described,` so that a suitable guardof hard rubber or wood may be used in place of the metal guard, the hardrubber guard being of sufficient size to have the necessary rigidity andbeing much more permanent owing to its non-corrodible character, thanthe metal guard.

In the drawings:

Figure 1 shows the pen end of a fountain pen of the old construction,with the cap applied, in sectional elevation;

Fig.` 2 is a similar view of my improved Fig. 3 is a similar view of thecap; y

in' the county ofi` `Middlesex and State of Massachusetts, have inventedrection'of ythe arrows; `f

Fig. 4l is a` `view ons an enlarged scale, partly in section, of the pen.end of" Figp2- with the pen projected,`the grooves ofthe feed-bar beingshownin dotted lines; j

hFig; 5 is a view ofthe feed-bar and oar- .rier of Figli, from below; i

`on an enlargedscale and looking iin the di- Fig. i7 shows the feedebarof Fig. 6 ona scale s'tilllalger.: F ig.k 8 isa sectionkofthe"vSpecicatien of lLetters Patent. i Patented J 11` 1921;.

Fig. 6 is a section on line 6-6 of Fig. k2, 1

feed-'bar of: Fig. `lf onV the scale .of Fig.` 7. In the drawings, Fig.1, A' represents the at itsinner enclosedl .end aconical plug '0,

f I) the gold pen. vhe openend of the fountarnqA 4carries afpen carrier,the rear end al ofiwhichis'shapedto fit and slide in the interior of,the Open end ofthe fountain:

and ithe forward .endl of `which is shaped,

witha `central'apxial pro'jectingmetal guard substantialjly'as shown toform a feed-bar y c. vThe slideal and its associated feed-bar a2 and penpoint P may be moved lengthwise of the fountain to retract and projectthe pen, by a bar, a4", projecting throughthe rear end of the fountainpAgroove is formed'in the'upper surface of al and a2 at a3. All this is asusual in pens of this type.

In Fig. 2 is shown a pen 'fitted with my new slide and feed-bar andcarrying the large hard rubber guard. A represents the fountain, B thecap having its inner end closed and carrying at its inner closed end aconical plug,` Z), with a central axial projecting guard l of vhardrubber or wood or the like, of relatively large diameter. In f the openend of the fountain is mounted a slide the rear end of which al is of asize to fill the interior bore of the mouth of the fountain when the penpoint is projected.

The feed-bar 2 is formed with an ink groove a3 upon its upper surface,as above described and its lower surface is also grooved, as at 22 toreceive the guard l, and at the base of the feed-bar, and in thecenterof the face of the slide a1 is preferably formed a recess a5 to receiveand center the end l1 of the guard l, when and if the cap is placed uponthe fountain, before terial such as hard rubber or Wood, not affectedinjuriously by the ink nor corroded thereby.

In all prior constructions of the retracting pen type it has beennecessary to form or position the feed-bar entirely to one side of theaxis of the slide or carrier member in order that there might be,opportunity for the metal guard to engage the slide or carrier at ornear the axial center ofthe face of the carrier and in consequence thefeed-bar was necessarily reduced, in thickness and could not be made ofthe sturdy dimen sions desirable in a part which must be adjusted fromtime to time, in repairs and to give the desired ink lovv. In myimproved device the sides 2x of the ink bar vare increased in depth,stilening the bar sothat it may be manipulated as desired and at thesame time forming a groove 22 on the bottom of the feed-bar 2, toreceive the large guard 1 of non-corrodible material. In operation, the

l guard l will contact (see Fig. 2) or almost contact (see F ig. 6) Withthe feed-bar 2,

rendering mutual support against any possible tendency of the guard l tobuckle and the end l1 of the guard in contacting With y the carrier alWill enter therecessa5 and be erred form of the under groove, in whichthe groove is deep enough to receive a large part of the guard, the endof which is received and centered in the axial cavity in the yface ofthe slide, and in Which when endWise pressure is applied to the guard,the feed-bar gives support to the guard against any tendency to bend.The sides of the unlder groove have the effect of stiffening thefeed-bar and making it possible to enlarge the grooves untilonly a ve ithin partition separates the upper and un er grooves. the bar incross-section having roughly the shape of the letter H (see Fig. 7) thisnecessary stilness of the feed-bar being given by the sides 2X of thefeed-bar and not as is customary by the part beneath the ink groove, or,inother Words the stiffness being givenby the side members of the H andnot by the cross member.

I claim:

In a fountain pen, the combination of a feed-bar, grooved upon its uppersurface for ink, and'having a longitudinal recess upon its under surfaceto receive a non-metallic guard attachment to the cap; that cap andguard.

Signed aty Boston, Massachusetts, this.

25th day of March,

i HENRY J. UPTON.

